Maritime Hydraulics Type DDM-650-DC-B-07-CC-650 Ser. no.: MH 3201-01 Approval: DNV 2nd of March 1994 2 x GE DC-motors, shunt model GE752 AUT (not included) Gear ratio: 1:5,52 through a single reduction gear DC-motors mounted vertically on the gearbox, one on each side. The DDM can be used with only one motor running (separate cooling & purge system). Max torque 88000 Nm ( 64890 ft-lbs) while drilling 0 to 163 RPM. Torque reduced to 47480 Nm ( 34850 ft-lbs) at max speed 240 RPM. Max. torque intermittent: 97000 Nm ( 71500 ft-lbs) Mud pressure (WP): 7500 psi Variable torque and speed between these limits To the best of our knowledge the top drive is complete except for the motors, control panels and some minor items. Photos are available on request.